Q: Q: stalls when put in gear

asked by on

so i rebuilt my throttle body and replaced all the vacum lines and egr valve. when the truck is in park or nutruel the rpms are fine but when i but it in drive or reverse the rpms go down to about 700. sometimes just stalls out. i can drive it a couple feet and it stalls out when i release the gas pedal.

My car has 133650 miles.
My car has an automatic transmission.

The idle control valve may be stuck or you have a vacuum leak. Try to disconnect the vacuum lines to the EGR valve to see if it still stalls. This may be due to problems in the vacuum system. Try and disconnect the idle air valve to see if the engine idles down and dies. If the idle stays the same is an indication the valve does not work and may need to be replaced. If the problem still exists, then have the computer scanned for codes and diagnose any codes received. You may want to consult a professional mechanic, such as one from YourMechanic, if you would like a diagnosis and repair of your stalling issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: stalls when put in gear

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Power steering problem 2003 Chevrolet Impala

Hello - I believe the serpentine belt and it's tensioner are weak, slipping and causing both the alternator and power steering behavior you are experiencing. Both functions are driven by this belt, which will tend to slip worse when rain/water...

Q: I need to diabke anti theft I changed out steering colum ignition switch looked at all fuses

Anything can be bypassed, but it will take more time and money to bypass the security system than it will to replace it. This is a common request from many customers and I can say that the manufacturers do a...

Q: High idle 1500 rpm

I would look again real carefully for air leaks. Some of them can be pretty tricky. There might be a leaky component or even a leaking brake booster. A can of carb cleaner can help with this, but you'd better...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.